diff options
Diffstat (limited to 'src/gui/focushandler.cpp')
| -rw-r--r-- | src/gui/focushandler.cpp | 518 |
1 files changed, 511 insertions, 7 deletions
diff --git a/src/gui/focushandler.cpp b/src/gui/focushandler.cpp index 04cb3f555..22153c91f 100644 --- a/src/gui/focushandler.cpp +++ b/src/gui/focushandler.cpp @@ -20,6 +20,49 @@ * along with this program. If not, see <http://www.gnu.org/licenses/>. */ +/* _______ __ __ __ ______ __ __ _______ __ __ + * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\ + * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / / + * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / / + * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / / + * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ / + * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/ + * + * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson + * + * + * Per Larsson a.k.a finalman + * Olof Naessén a.k.a jansem/yakslem + * + * Visit: http://guichan.sourceforge.net + * + * License: (BSD) + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name of Guichan nor the names of its contributors may + * be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED + * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR + * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING + * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS + * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + #include "gui/focushandler.h" #include "gui/gui.h" @@ -28,6 +71,20 @@ #include "debug.h" +FocusHandler::FocusHandler() : + mWidgets(), + mFocusedWidget(nullptr), + mModalFocusedWidget(nullptr), + mModalMouseInputFocusedWidget(nullptr), + mDraggedWidget(nullptr), + mLastWidgetWithMouse(nullptr), + mLastWidgetWithModalFocus(nullptr), + mLastWidgetWithModalMouseInputFocus(nullptr), + mLastWidgetPressed(nullptr), + mModalStack() +{ +} + void FocusHandler::requestModalFocus(gcn::Widget *widget) { /* If there is another widget with modal focus, remove its modal focus @@ -39,7 +96,9 @@ void FocusHandler::requestModalFocus(gcn::Widget *widget) mModalFocusedWidget = nullptr; } - gcn::FocusHandler::requestModalFocus(widget); + mModalFocusedWidget = widget; + if (mFocusedWidget && !mFocusedWidget->isModalFocused()) + focusNone(); } void FocusHandler::releaseModalFocus(gcn::Widget *widget) @@ -48,14 +107,15 @@ void FocusHandler::releaseModalFocus(gcn::Widget *widget) if (mModalFocusedWidget == widget) { - gcn::FocusHandler::releaseModalFocus(widget); + if (mModalFocusedWidget == widget) + mModalFocusedWidget = nullptr; /* Check if there were any previously modal widgets that'd still like * to regain their modal focus. */ if (!mModalStack.empty()) { - gcn::FocusHandler::requestModalFocus(mModalStack.front()); + requestModalFocus(mModalStack.front()); mModalStack.pop_front(); } } @@ -65,19 +125,188 @@ void FocusHandler::remove(gcn::Widget *widget) { releaseModalFocus(widget); - gcn::FocusHandler::remove(widget); + if (isFocused(widget)) + mFocusedWidget = nullptr; + + for (WidgetIterator iter = mWidgets.begin(); + iter != mWidgets.end(); ++iter) + { + if ((*iter) == widget) + { + mWidgets.erase(iter); + break; + } + } + + if (mDraggedWidget == widget) + { + mDraggedWidget = nullptr; + return; + } + + if (mLastWidgetWithMouse == widget) + { + mLastWidgetWithMouse = nullptr; + return; + } + + if (mLastWidgetWithModalFocus == widget) + { + mLastWidgetWithModalFocus = nullptr; + return; + } + + if (mLastWidgetWithModalMouseInputFocus == widget) + { + mLastWidgetWithModalMouseInputFocus = nullptr; + return; + } + + if (mLastWidgetPressed == widget) + { + mLastWidgetPressed = nullptr; + return; + } } void FocusHandler::tabNext() { - gcn::FocusHandler::tabNext(); + if (mFocusedWidget) + { + if (!mFocusedWidget->isTabOutEnabled()) + return; + } + + if (mWidgets.empty()) + { + mFocusedWidget = nullptr; + return; + } + + int i; + int focusedWidget = -1; + const int sz = static_cast<int>(mWidgets.size()); + for (i = 0; i < sz; ++ i) + { + if (mWidgets[i] == mFocusedWidget) + focusedWidget = i; + } + const int focused = focusedWidget; + bool done = false; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = sz; + do + { + ++ focusedWidget; + + if (i == 0) + { + focusedWidget = -1; + break; + } + + -- i; + + if (focusedWidget >= sz) + focusedWidget = 0; + + if (focusedWidget == focused) + return; + + const gcn::Widget *const widget = mWidgets.at(focusedWidget); + if (widget->isFocusable() && widget->isTabInEnabled() && + (!mModalFocusedWidget || widget->isModalFocused())) + { + done = true; + } + } + while (!done); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } checkForWindow(); } void FocusHandler::tabPrevious() { - gcn::FocusHandler::tabPrevious(); + if (mFocusedWidget) + { + if (!mFocusedWidget->isTabOutEnabled()) + return; + } + + if (mWidgets.empty()) + { + mFocusedWidget = nullptr; + return; + } + + int i; + int focusedWidget = -1; + const int sz = static_cast<int>(mWidgets.size()); + for (i = 0; i < sz; ++ i) + { + if (mWidgets[i] == mFocusedWidget) + focusedWidget = i; + } + const int focused = focusedWidget; + bool done = false; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = sz; + do + { + -- focusedWidget; + + if (i == 0) + { + focusedWidget = -1; + break; + } + + -- i; + + if (focusedWidget <= 0) + focusedWidget = sz - 1; + + if (focusedWidget == focused) + return; + + const gcn::Widget *const widget = mWidgets.at(focusedWidget); + if (widget->isFocusable() && widget->isTabInEnabled() && + (!mModalFocusedWidget || widget->isModalFocused())) + { + done = true; + } + } + while (!done); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } checkForWindow(); } @@ -107,5 +336,280 @@ void FocusHandler::distributeFocusGainedEvent(const Event &focusEvent) { if (gui) gui->distributeGlobalFocusGainedEvent(focusEvent); - gcn::FocusHandler::distributeFocusGainedEvent(focusEvent); + + gcn::Widget *const sourceWidget = focusEvent.getSource(); + + std::list<FocusListener*> focusListeners + = sourceWidget->_getFocusListeners(); + + // Send the event to all focus listeners of the widget. + for (std::list<FocusListener*>::const_iterator + it = focusListeners.begin(); + it != focusListeners.end(); + ++ it) + { + (*it)->focusGained(focusEvent); + } +} + +void FocusHandler::requestFocus(gcn::Widget* widget) +{ + if (!widget || widget == mFocusedWidget) + return; + + int toBeFocusedIndex = -1; + for (unsigned int i = 0, sz = static_cast<unsigned int>( + mWidgets.size()); i < sz; ++i) + { + if (mWidgets[i] == widget) + { + toBeFocusedIndex = i; + break; + } + } + + if (toBeFocusedIndex < 0) + return; + + gcn::Widget *const oldFocused = mFocusedWidget; + + if (oldFocused != widget) + { + mFocusedWidget = mWidgets.at(toBeFocusedIndex); + + if (oldFocused) + { + Event focusEvent(oldFocused); + distributeFocusLostEvent(focusEvent); + } + + Event focusEvent(mWidgets.at(toBeFocusedIndex)); + distributeFocusGainedEvent(focusEvent); + } +} + +void FocusHandler::requestModalMouseInputFocus(gcn::Widget* widget) +{ + if (mModalMouseInputFocusedWidget + && mModalMouseInputFocusedWidget != widget) + { + return; + } + + mModalMouseInputFocusedWidget = widget; +} + +void FocusHandler::releaseModalMouseInputFocus(gcn::Widget* widget) +{ + if (mModalMouseInputFocusedWidget == widget) + mModalMouseInputFocusedWidget = nullptr; +} + +gcn::Widget* FocusHandler::getFocused() const +{ + return mFocusedWidget; +} + +gcn::Widget* FocusHandler::getModalFocused() const +{ + return mModalFocusedWidget; +} + +gcn::Widget* FocusHandler::getModalMouseInputFocused() const +{ + return mModalMouseInputFocusedWidget; +} + +void FocusHandler::focusNext() +{ + int i; + int focusedWidget = -1; + const int sz = static_cast<int>(mWidgets.size()); + for (i = 0; i < sz; ++i) + { + if (mWidgets[i] == mFocusedWidget) + focusedWidget = i; + } + const int focused = focusedWidget; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = sz; + do + { + ++ focusedWidget; + + if (i == 0) + { + focusedWidget = -1; + break; + } + + -- i; + + if (focusedWidget >= sz) + focusedWidget = 0; + + if (focusedWidget == focused) + return; + } + while (!mWidgets.at(focusedWidget)->isFocusable()); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } +} + +void FocusHandler::focusPrevious() +{ + if (mWidgets.empty()) + { + mFocusedWidget = nullptr; + return; + } + + int i; + int focusedWidget = -1; + const int sz = static_cast<int>(mWidgets.size()); + for (i = 0; i < sz; ++ i) + { + if (mWidgets[i] == mFocusedWidget) + focusedWidget = i; + } + const int focused = focusedWidget; + + // i is a counter that ensures that the following loop + // won't get stuck in an infinite loop + i = sz; + do + { + -- focusedWidget; + + if (i == 0) + { + focusedWidget = -1; + break; + } + + -- i; + + if (focusedWidget <= 0) + focusedWidget = sz - 1; + + if (focusedWidget == focused) + return; + } + while (!mWidgets.at(focusedWidget)->isFocusable()); + + if (focusedWidget >= 0) + { + mFocusedWidget = mWidgets.at(focusedWidget); + Event focusEvent(mFocusedWidget); + distributeFocusGainedEvent(focusEvent); + } + + if (focused >= 0) + { + Event focusEvent(mWidgets.at(focused)); + distributeFocusLostEvent(focusEvent); + } +} + +bool FocusHandler::isFocused(const gcn::Widget* widget) const +{ + return mFocusedWidget == widget; +} + +void FocusHandler::add(gcn::Widget* widget) +{ + mWidgets.push_back(widget); +} + +void FocusHandler::focusNone() +{ + if (mFocusedWidget) + { + gcn::Widget *const focused = mFocusedWidget; + mFocusedWidget = nullptr; + + Event focusEvent(focused); + distributeFocusLostEvent(focusEvent); + } +} + +void FocusHandler::distributeFocusLostEvent(const Event& focusEvent) +{ + gcn::Widget *const sourceWidget = focusEvent.getSource(); + + std::list<FocusListener*> focusListeners + = sourceWidget->_getFocusListeners(); + + // Send the event to all focus listeners of the widget. + for (std::list<FocusListener*>::const_iterator + it = focusListeners.begin(); + it != focusListeners.end(); + ++ it) + { + (*it)->focusLost(focusEvent); + } +} + +gcn::Widget* FocusHandler::getDraggedWidget() +{ + return mDraggedWidget; +} + +void FocusHandler::setDraggedWidget(gcn::Widget* draggedWidget) +{ + mDraggedWidget = draggedWidget; +} + +gcn::Widget* FocusHandler::getLastWidgetWithMouse() +{ + return mLastWidgetWithMouse; +} + +void FocusHandler::setLastWidgetWithMouse(gcn::Widget* lastWidgetWithMouse) +{ + mLastWidgetWithMouse = lastWidgetWithMouse; +} + +gcn::Widget* FocusHandler::getLastWidgetWithModalFocus() +{ + return mLastWidgetWithModalFocus; +} + +void FocusHandler::setLastWidgetWithModalFocus(gcn::Widget* widget) +{ + mLastWidgetWithModalFocus = widget; +} + +gcn::Widget* FocusHandler::getLastWidgetWithModalMouseInputFocus() +{ + return mLastWidgetWithModalMouseInputFocus; +} + +void FocusHandler::setLastWidgetWithModalMouseInputFocus(gcn::Widget* widget) +{ + mLastWidgetWithModalMouseInputFocus = widget; +} + +gcn::Widget* FocusHandler::getLastWidgetPressed() +{ + return mLastWidgetPressed; +} + +void FocusHandler::setLastWidgetPressed(gcn::Widget* lastWidgetPressed) +{ + mLastWidgetPressed = lastWidgetPressed; } |